TCFP Plans Examiner Practice Test

If a tank contains unstable flammable or combustible liquids, what is the minimum distance required between the tanks?

1. 1/4 the sum of their diameters

2. 1/2 the sum of their diameters

3. 1/6 the sum of their diameters

4. 2/3 the sum of their diameters

The correct answer is: 1/2 the sum of their diameters

The minimum distance required between tanks that contain unstable flammable or combustible liquids is calculated using a specific formula involving the sum of their diameters. In this case, the correct answer is to take half of the sum of their diameters. This requirement is important for safety reasons. Flammable or combustible liquids have the potential for explosive reactions, especially if they are unstable. Proper spacing helps to minimize the risks of fire spreading between tanks and allows for better emergency response capabilities if an incident were to occur. Maintaining a distance that equals at least half the combined diameters of the tanks mitigates the potential hazards associated with these types of liquids. While other options suggest different ratios, they do not adhere to the recognized safety guidelines for maintaining a safe distance between such tanks. Therefore, using half the sum of their diameters ensures compliance with safety standards and reduces the risk of severe incidents.